idiom- a cliche that a lot of people use in a given culture, often ones that nobody knows where it came from (ex. kick the bucket, leave well enough alone, don’t look a gift horse in the mouth)

going to the store

the girl and her dog

Idiom: an odd expression that doesn’t mean what it says

raining cats and dogs

cool as a cucumber

– a group of words that doesn’t have a subject and predicate yet it can be understandable..

e.g.

a basket of apples..

tall, smart, pretty..

idiom

-a group of words that means differently from how it is said..

e.g.

looking for her is like finding a needle in a haystack..